Hagaman



STINSON HAGAMAN, UF WElSSPORT, PENNSYLVANIA VLetters Patent No. 81,774,dated September 1, 1868.

IMPROVEMENT 1N MACHINES Een PoLIsEINe .Woonl @its rlgrtul mantle im timeteitett uteut uitrusting gni ut tige time.'

TO ALL WHOM IT MAY CONGERNz..

Beit known that I, STINSNHAGAMAN, of Weissport, in the county Carbon,und State of Pennsylvania,

have invented anew and improved Machine for Planing and Fih-ishing theFramesvof School-Sintes; and I do hereby declare that the following is afull, clear, and exact description thereof, which will enable othersskilled in the art to make and usethe same, reference being had to theaccompanying drawings, forming partfof this specification, in'which- ,t

Figure-1 represents a side elevation of myrimproved schoolslateframeplaning and finishingfmachinc.A

This invention relates to 'a machine'for planing and nishing the framesof school-slates in an expeditious ,and handsome manner, undicontains ahorizontal circularA planer, (of iron, or any other suitable material,)in which three (more or less) planeirons are held, and so arranged (wheni'n motion) as to strike the whole surface of one side of thesIate-frameat the same time when it is brought in contact with the planer. Then theslate `,is turned over, andthe other side of the frame is finished inthe saine manner.

This inventionconsists, first, in the manner-.of holding and applyingthe slate (or the frame) to the under surface of the horizontal planer,one small vertical shaft sliding in suitable bearings, ontopof which isfastened a frame or table, containing a cavity, in which the slate isheld. The shaft is raised or slid in its bearings hy a trendle or lever,causing the slate (or the frame) to-'comein contact with the planer.There is an' a.djustable sleeve and slide on` and connected with thisshaft, that serves as a gauge, to prevent the planer from cutting more'olf the slateframe than to produce a smooth and even surface. Thisshaft is prevented from revolving by somesuitable iixture, against whichthe frame or table rests. -Y

' This invention consists, second,- in hanging a circular planer onthe-lower extremity o i'ha vertical shaft,

'and screwed fast, that it may be easily detached and another attached,as each will require to be a certain diameter, to suwit the 'size ofslate inished. l u Y A represents a rectangular or other frame, made ofwood 5r other suitable material, of suiicient strength to support andhold the working parts of this machine. v

B vis an -unprightshaft, having its bearings in theframeA, upon which isa pulley, C, over which a belt l passes, to impart motion tothe machine.

' D is a circular` planer that iuishesv the slates.A Y

E is a shaft, also having its bearings in the frame A, on top of whichis a Harige, F, that supports the frame or table G, that holds theslate, H, (in redink.)

Qn this shaft is also a loose sleeve, z', with a set-screw,j, and a nut,lc, underneath, that, when the set-screw is loosened, the sleeve z' muybe very accurately adjusted, as it is tc serve as a gauge to regulatethe thickness of the slateframes. Y

Above this sleeve z' is a slide, Z, (in"rcd'ink,) against the thick endof which the sleeve t' rests when, the first side of the slate-frame isplaned, and against the' thinner end (the slide being shifted) yafterthe slate is turned l over, and the other side being finished.'

By pressing` upon the lever or .treadle M, theshaft E is elevated,causing'the frame of theA slate H to come in contact with the undersurface of the planer D.

The blocks N N, fastened on the frame A, prevent the frame or table Gfrom revolving, but not from moving up and down.

Having thus described my invention, what I claim as' new, and desire tosecure by Letters Patent; s; The loose sleeve t', setscrew j, nut lc,and slide l, in combination with the shaft E and treadle M, operatingsubstantially as described, and for the purpose specified.

`STINSON HAGAMAN.

AWitnesses:

i. EDM. F. BROWN,

R. P. ANDERSON.

